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Re: Eagle cast stroker crank---Quality
[Re: RyanJ]
#575577
01/08/10 12:13 PM
01/08/10 12:13 PM
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Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing
master
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master
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
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Quote:
Quote:
Thats enough failures for me . No Eagle stuff then.
Funny......on this site......
some people on here want to bash 440Source---yet i dont see ANY info on massive failures with their cranks..........in fact, ive never heard of one yet.
Yes is'nt that funny how no one seems to have ever seen a Source crank actually fail? All the complaining comes from machining issues, which I'm sure they do have some of, & then home hobbiest engine builders who think having to scrape a main bearing to clear an 1/8" radius is some kind of challenge from Satan or something....
These Eagle CAST cranks seem to fail with regularity.... I know I would never sell another, no matter what the "intended" use was. Just because guy claims he only wants to make 425-450 HP today, never know what he will do with it in future. Just not worth the hassle/risk of running a known weak part. The 2 motors I saw them fail in were not making tremendous power, both would be under 500 HP on dyno I use, based on vehicle weights & track ET/MPH's, so you can take that under 500 HP rule & throw it away IMO.
Eagle & K1 4340 Forged 4" also have plenty of material in the CW's to not require mallory when internal balancing (unlike Callies/SCAT's) so the balance cost savings does'nt hold weight either, no pun intended. Just my 
 We had the Eagle cast crank in a 416" small block,not only did it cost a ton to internally balance but broke on the first outing on the 4th pass,68 street Cuda,4.10 street M/Ts,10.70 runs.Sleepyhead told me told me not to use it.
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Re: Eagle cast stroker crank---Quality
[Re: B G Racing]
#575578
01/08/10 01:11 PM
01/08/10 01:11 PM
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Joined: Feb 2003
Posts: 12,675
Columbia, CT
moper
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 12,675
Columbia, CT
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I understand having to cover as many bases as you can Ryan. But taking that logic to the furthest degree one could argue that any build using a stock block needs to be built to withstand 600hp because sometime in the next few seasons the owner may want to do it. There's proper parts spec'ing and there's incorrect choices. I dont feel for mild builds (and I believe 1 -1.1hp/inch is mild for these engines) that these cranks are bad. Cheap? Yes. Taper and finish issues like all the other "economy" cranks? Yes. But that's why they go for under $300. My mortage payment doesnt depen on income from engines and yet I stand behind mine and I've paid out four figures for customers' engines when something I overlooked or screwed up led to issues. So while I can relate to the reasoning, I don't agree with blacklisting the product totally. I just use it for what it's designed for. I think the ads for this crank say up to 450hp anyway.
Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.
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Re: Eagle cast stroker crank---Quality
[Re: moper]
#575580
01/08/10 03:37 PM
01/08/10 03:37 PM
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Joined: Nov 2009
Posts: 3,410
Belpre,Ohio
CHAPPER
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master
Joined: Nov 2009
Posts: 3,410
Belpre,Ohio
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The Eagle 'forged' cranks I have used in Chebbys have worked fine over the years. I believe the problem with any of the after market cranks is the "cast" part. The quality of the material/alloy/carbon content/etc is another factor. I have used alot of Eagle products in X brand engines. I am a Mopar fan myself, but make a living off the X brand racers. I don't use cast cranks in anything unless the customer already has the stuff and will not listen to my experiences...then his warranty is GONE!
If you like drag racing, support your local track.
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Re: Eagle cast stroker crank---Quality
[Re: @#$%&*!]
#575581
01/08/10 06:41 PM
01/08/10 06:41 PM
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Joined: Jan 2003
Posts: 8,547
State College, PA
RyanJ
moparts member
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moparts member
Joined: Jan 2003
Posts: 8,547
State College, PA
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Quote:
That said, it sounds to me like they might be weaker than the factory cast-iron cranks...
That would be my opinion from what I've seen... I would trust a factory 360 cast crank over an Eagle 4" Cast to be honest.... I think the factory crank will take more power. Again... just my No one ever said I was right..... just opinionated LOL.
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Re: Eagle cast stroker crank---Quality
[Re: cheapstreetdustr]
#575583
01/08/10 07:35 PM
01/08/10 07:35 PM
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Joined: Nov 2009
Posts: 3,410
Belpre,Ohio
CHAPPER
master
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master
Joined: Nov 2009
Posts: 3,410
Belpre,Ohio
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I believe the 4" has more to do with it..
If you like drag racing, support your local track.
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Re: Eagle cast stroker crank---Quality
[Re: Scamp408]
#575585
01/08/10 08:20 PM
01/08/10 08:20 PM
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Joined: Jan 2003
Posts: 8,547
State College, PA
RyanJ
moparts member
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moparts member
Joined: Jan 2003
Posts: 8,547
State College, PA
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Quote:
Who makes the mopar cast cranks?
It's a SCAT 9000 series crank W/ SCAT logo ground off
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Re: Eagle cast stroker crank---Quality
[Re: CHAPPER]
#575586
01/08/10 08:29 PM
01/08/10 08:29 PM
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Joined: Feb 2003
Posts: 12,675
Columbia, CT
moper
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 12,675
Columbia, CT
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I think it's more a combination of quality of casting process, consistancy of the metalurgy from modern offshore foundries, and questionable condition of the equipment used. Edelbrock has some issues with maintaining top of the line equipment so it begs the question of what is machining these parts?
Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.
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Re: Eagle cast stroker crank---Quality
[Re: flatiron]
#575587
01/08/10 09:15 PM
01/08/10 09:15 PM
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Joined: Aug 2009
Posts: 2,049
Mooresburg, Tn
'72CudaRacer
top fuel
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top fuel
Joined: Aug 2009
Posts: 2,049
Mooresburg, Tn
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Quote:
Anyone familar with The eagle cast crank that Mancini has on sale part number#eag103604000 Opinions good or bad
Probably OK for their intended use, but certianly not a HP part. A fellow racer from down the street races a '65 Ford Mustang (nice) with a 460. He built a new engine w/ Eagle cast crank (? to save a couple $) and 32 passes later it looks like the pictures posted above. Only worse. Got the block,rods, oil pan ect.  
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Re: Eagle cast stroker crank---Quality
[Re: '72CudaRacer]
#575588
01/09/10 07:11 PM
01/09/10 07:11 PM
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Joined: Feb 2007
Posts: 1,025
Las Vegas, NV
dodgeboy11
super stock
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super stock
Joined: Feb 2007
Posts: 1,025
Las Vegas, NV
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I've had issues with the eagle cranks (forged) counterweights not clearing pistons in chrysler and one ford application. I prefer the Scat stuff as everything seems to clear out of the box. Haven't had any balance issues with anything that has a reasonable bobweight.
That one eagle crank taught me a lesson: buy quality pieces that are probably overkill for your application. You can nickel and dime yourself to death, but if you've got it apart, get the money to do it right. Doesn't always mean the most expensive parts, just get the right parts.
Last edited by dodgeboy11; 01/09/10 08:23 PM.
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Re: Eagle cast stroker crank---Quality
[Re: 493_DART]
#575590
01/09/10 07:49 PM
01/09/10 07:49 PM
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Joined: Jan 2003
Posts: 16,928
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,928
NC
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Quote:
Thats enough failures for me . No Eagle stuff then.
I have never been a fan of Eagle products. They are a low cost, low quality product. I would not call them junk, just not a good value for the money. The machining on the journals is of low quality and could be acceptable or need a regrind. And doing that work adds cost to make it a bad value. Buy another brand, IMO.
And a cast crank in a race motor, not a good idea.
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Re: Eagle cast stroker crank---Quality
[Re: 440Jim]
#575591
01/09/10 07:52 PM
01/09/10 07:52 PM
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Joined: Sep 2004
Posts: 2,093
oberlin, Ohio
Rapid340
top fuel
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top fuel
Joined: Sep 2004
Posts: 2,093
oberlin, Ohio
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I have not heard of any problems with the forged Eagle cranks.
1971 Factory Appearing Duster 340 11.000 @ 122 mph
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Re: Eagle cast stroker crank---Quality
[Re: Rapid340]
#575592
01/09/10 07:56 PM
01/09/10 07:56 PM
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Joined: Jan 2003
Posts: 16,928
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,928
NC
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Quote:
I have not heard of any problems with the forged Eagle cranks.
There have been tons of Eagle forged cranks that needed to be reground to be right.
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Re: Eagle cast stroker crank---Quality
[Re: RyanJ]
#575594
01/10/10 12:48 AM
01/10/10 12:48 AM
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Joined: Feb 2004
Posts: 4,501
Gainesville,FL
goldmember
master
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master
Joined: Feb 2004
Posts: 4,501
Gainesville,FL
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Quote:
Quote:
That said, it sounds to me like they might be weaker than the factory cast-iron cranks...
That would be my opinion from what I've seen... I would trust a factory 360 cast crank over an Eagle 4" Cast to be honest.... I think the factory crank will take more power. Again... just my No one ever said I was right..... just opinionated LOL.
Right on!
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Re: Eagle cast stroker crank---Quality
[Re: emarine01]
#575596
01/10/10 12:51 PM
01/10/10 12:51 PM
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Joined: Dec 2006
Posts: 3,533
Indiana
Fury Fan
master
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master
Joined: Dec 2006
Posts: 3,533
Indiana
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And increasing the stroke decreases the overlap unless the journals get bigger. Bigger journals lead to greater velocity at the journal/bearing interface, so oil film is more critical at high RPM. Catch 22...
Parts I seek:
driver doorpanel, 65 Sport Fury, prefer black, needs to be 7-8 on 10 scale, might buy set
16" x 6" Dodge truck wheel(s), from early 70s?, takes 9" dogdish - need for a research job so cheaper is better.
69-73 C-body caliper brackets and/or splashields
Send a PM.
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